DEEP SKY IMAGING
with Atik 2HS CCD camera and Orion 120ST (4.7" f/5) achromat refractor
Jim Ferreira  BakerSt@comcast.net Livermore, CA
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Double Cluster in Perseus - 12cm achromat @ f/3.5, IR block
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M1 / Crab Nebula --12cm achromat @ f/5, IR blocking filter
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M13 - 12cm achromat @ f/5, UV/IR fringe reduction filter, 10x100 seconds, manually guided
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M109 - 12cm achromat @ f/5, UV/IR block filter
23x150 seconds, manually guided
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M51 - 12cm achromat @ f/5, IR block filter, manually guided
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M27 - 12cm achromat @ f/5, UV/IR block filter, 25x200 seconds, manually guided
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M97 - 12cm achromat @ f/5, UV/IR block filter, 25x200 seconds, manually guided
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M3 - 12cm achromat @ f/3.5, IR rejection filter, 20x30 seconds
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M101 - 12cm achromat @ f/5, UV/IR fringe reduction filter, 20x100 seconds, GM8 mount manually guided
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M81 & M82 mosaic [3 frames] - 12cm achromat @ f/3.5, IR rejection filter, each frame 40x50 seconds
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M81 - 12cm achromat @ f/3.5, Atik 0.5x reducer w/ short coupler, IR block filter, 40x30'
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M42 - 12cm achromat @ f/3.5, IR block filter
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M46 & NGC2438 - 12cm achromat @ f/2.5, IR block filter
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NGC1977 - 12cm achromat @ f/3.5, IR block filter
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